Question

Factor 4r^6-500r^3

Answer 1

first factor the common factor of
\[4r^3\]

Answer 2

get
\[4r^3(r^3-125)\] then
\[r^3-125=r^3-5^3\] factors as the difference of two cubes. you get
\[4r^3(r-5)(r^2+5r+25)\]